Safety attachment for tractors



Mw l, wm. Mmmm L. mmmmMmm-w SAFETY ATTACHMENT FOR TRACTORS Filed Oct. 7. 1920 lll ttl

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Patented lfay' l, 1923 JhTZ'tClitMlENT lEOiEt TRACTURPE.

application filed october i?, 1920.

.ToaZZ whom it may concer/1t.'

lle it known that l, llnannnn BrunsonnAorr, a citizen ot the United States, residing at lllount Pleasant, in the county of isabella and @tate (i'lhlicliigaii, have `.invented certain new and useful lmprovements in Safety Attachments i'for rTractors, ot which the following isa specification.

` This invention relates to tractor' attachments and more particularly to safety attachments lfor tractors.` i

The object ot the invention to provide an attachment tor .preventing backward tippini: of a tractor incident to the blocking ot the drive wheels. y y Another object is to provide a simple and elieient` attachment ot this character which `may be readily applied to any `tractor and connected with the clutch to throw said `clutch automatically into neutral. position when the tractor tor any reason rears in liront thereby preventing all possibility ot the tipping' over backwards ot a tractor endangering the drivers lil-e in addition to wrecking the machine.

lt is well lrnown that tractors, it the driver loses his head and tails to release the clutch, will rear up in iront and tip over backwards when the drive wheels are blocked and sutlicient power is applied to the differential., oftentimes crushing" the driver and wrecking; the tractor and it is to prevent such accidents that this attachf ment is designed..

`With these and other objects inview, the invention consists in certain novel features ot construction as hereinatter shown and described, and then speciically pointed out in the claims, and in the drawings illustrative ot the preferred embodiment ot the invention. p

.lin the accompanying drawings:

Figure l. represents a side elevation ol a tractor showing this improved attachment applied and in inoperative normal position.

Fig. 2 is a perspective view et the attachment detached.

.ln-the embodiment illustrated the attachment constituting this invention is shown applied to a tractor T being,F mounted on the housing of the rear `axle t thereot, said tractor being` equipped with the usual front wheels W and driving wheels DW.. 'llhe attachment may be applied to tractors oit any malte but is especially designed tor use in connection with Fordson tractors.

serial no. rimase. y

rthe attachment comprises a connectingr hand or ringl which is designed to encircle the axle housing oit the tractor drive wheel and has projecting1 laterally from opposite points of its perimeter diverging attaching holding arms 2 and 3 which are secured to the lower part ot the band and have their tree ends projecting laterally and apertured to form attaching lingers or lugs 2 and 3*, and through which extend hold-'tast devices tor tinedly securing' said arms in position, as illustrated in Figure l ot the` drawings. .lhe Vlinger 3 is oit greater length than the linger 2'. Extending downwardly at right angles `from the linger it, as well as integr-al therewith, is a plate l.- which constitutes the fixed or stationary member ot an adjustable bumper l5.4 'lhe movable member 5 ot the bumper is mounted ttor longitudinal adjustment on the member Llby means oi" a set screw o which passes through said mem ber 4t and through a. longitudinally disposed slot T in the member 5 and whichis designed for a purpose presently to be described. p

lTulcrlluned on a stud. 8 projecting laiterally from one face ol' the bottom of band l. is a lever 9. @ne end of this lever projects beyond and under the bumper and has connected with its terminal a chain l0 which upites the lever with the clutch C of the tractor as is shown clearly in Fig. l so that when a downward movement is imparted to this end of the lever a pull will be exerted on chain l0 suliicient to release the clutch. The other end ot the lever 9 is offset downwardly and extended rearwardly, the oitlset extension Yll thereof carrying;f at its tieeend a shoe l2, the weight of which .norn'lally holds the chain carrying1 end ot the lever in engagement with the" bumper and avoids any pull beiner exerted on the chain. l0 such as' would operate to release the clutch. This shoe l2 in addition to fliorining a counterweight for the lever is designed to engage the ground when the tractor rears and thereby7 exert a pull on chain l() suilicient to release the clutch C throwing the drive wheels out of operation and permitting the tractor to lower into normal position, thereby avoiding' danger to the driver and injury to the machine rlhe attachment is normally suspended as shown in linf. l and should the tractor rear in trent incident to blocking' of the drive wheels or otherwise, the shoe l2 will come Vrelatively to the ground by operating as a stop to prevent the chain carrying end of the lever from rising beyond a predetermined point.

The preferred embodiment of the invention'is disclosed in the drawings and set forth in the specification, but it will be understood that any modifications within the scope of the claims may be made in the construction without departing from the principle of the invention or sacrificing any of its advantages.

Vhat is claimed is:

lL'An attachment of the class described comprising an axle encircling band having diverging holding arms fixed thereto, an adjustable bumper depending from one 'of said arms, and a `lever ulcrumed intermediate its ends on said band and having one end extended under said bumper andprovided with a clutch connecting element, the other end of said lever being offset and provided at its terminal with a shoe.

2. An attachment for the purpose set forth comprising a stationary axle encircling band provided with a holding means therefor, a bumper extended from said means, a lever iulerumed intermediate its ends on said band and having one end extended under and projecting beyond said bumper, a clutch operating element for connecting that end of the lever which projects beyond the bumper with a clutch Vand normally in inactive position, said lever having its other end offset, and means earried by the offset end oi the lever for maintaining the other end of the lever against the bumper whereby vertical movement thereof is arrested.

3. A device for the purpose set forth comprising a supporting element adapted to be mounted on the axle of a tractor and provided with a pair of holdingr arms, a bumper depending from one of said arms and including a stationary and an adjustable section, a lever fulermned intermediate its ends to and arranged below said supporting element, means earlried by one end or' the lever for maintaining the other end thereof against said bumper to arrest upward movement of said latter end, and a. clutch operating means carried by the lever and normally in inactive position.

In testimony whereof I affix my signanature hereto.

LEANDER BIERSCHBACH.

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